Yes, most of my colonies made swarming preparations that required to be dealt with and I should have Qs on mating flights during the last week. Mistimed my intervention, or missed more advanced Q cells in two colonies, by two days, and lost clipped Qs. One colony started with just two Q-cells early on which looked more supercedure than swarming but I still intervened. I did catch a lovely prime swarm at my apiary, not up a tree but in a goose pen, on a bush at waist height - 16 inquisitive, thankfully calm observers. I've never seen a swarm so big, I had to do two trips with a Paynes nuc to then completely fill up a brood box with foundation. I can only surmise someone keeping a double brood box (which I don't) and a very strong colony lost this one. OSR on tap and after a few days the foundation was drawn without any feeding, Q laying well and I had to put a super on. Q was easy to spot, lifted the crown board and there she was on top of a frame, marked blue and since she had a full set of wings definitely not mine! Well, she is now.